Angelica lineariloba
Encyclopedia
Angelica lineariloba is a species of angelica
known as poison angelica or Sierra angelica. It is native to the Sierra Nevada and nearby slopes and flats in California
and western Nevada
from 6000 to 10,600ft in elevation. This is a taproot
ed perennial herb producing an erect, hollow stem up to about 1.5 meters tall. The large but feathery leaves are made up of many highly dissected leaflets which are linear to threadlike in shape. The inflorescence
is a compound umbel
with up to 40 rays holding clusters of small white to cream flowers. There are papery sheaths at the base of each petiole where it branches from the stem (see image at left). The plants overall are rather similar to the other large umbellifers cow parsnip
and swamp whiteheads, but cow parsnips have huge lobed but undivided leaves, while swamp whiteheads have pinnate leaves and the individual flowerheads are dense, round balls.
Angelica
Angelica is a genus of about 60 species of tall biennial and perennial herbs in the family Apiaceae, native to temperate and subarctic regions of the Northern Hemisphere, reaching as far North as Iceland and Lapland...
known as poison angelica or Sierra angelica. It is native to the Sierra Nevada and nearby slopes and flats in California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
and western Nevada
Nevada
Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...
from 6000 to 10,600ft in elevation. This is a taproot
Taproot
A taproot is an enlarged, somewhat straight to tapering plant root that grows vertically downward. It forms a center from which other roots sprout laterally.Plants with taproots are difficult to transplant...
ed perennial herb producing an erect, hollow stem up to about 1.5 meters tall. The large but feathery leaves are made up of many highly dissected leaflets which are linear to threadlike in shape. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
is a compound umbel
Umbel
An umbel is an inflorescence which consists of a number of short flower stalks which are equal in length and spread from a common point, somewhat like umbrella ribs....
with up to 40 rays holding clusters of small white to cream flowers. There are papery sheaths at the base of each petiole where it branches from the stem (see image at left). The plants overall are rather similar to the other large umbellifers cow parsnip
Cow Parsnip
The Cow Parsnip is the only member of the genus Heracleum native to North America. Its classification has caused some difficulty, with recent authoritative sources referring to it variously as Heracleum maximum or Heracleum lanatum , as H. linatum, or as either a subspecies, H...
and swamp whiteheads, but cow parsnips have huge lobed but undivided leaves, while swamp whiteheads have pinnate leaves and the individual flowerheads are dense, round balls.